本文介绍了Folium中的HeatMapWithTime插件的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我能够创建热图,但点没有显示:
import folium
import folium.plugins as plugins
import numpy as np
import pandas as pd
import geopandas as gpd
from folium import Choropleth, Circle, Marker
from folium.plugins import HeatMap, MarkerCluster, HeatMapWithTime
ucdp_df = pd.read_csv('csv/ged201.csv') # from https://ucdp.uu.se/downloads/index.html#ged_global
ucdp = gpd.GeoDataFrame(ucdp_df, geometry=gpd.points_from_xy(ucdp_df.longitude, ucdp_df.latitude))
ucdp.crs = {'init': 'epsg:4326'}
m = folium.Map([35, 41], tiles='stamentoner', zoom_start=6)
hm = HeatMapWithTime(data=ucdp[['latitude', 'longitude']].values.tolist(),
index=ucdp['year'].values.tolist(),
radius=10,
auto_play=True,
max_opacity=0.3)
hm.add_to(m)
m
推荐答案
您需要以正确的格式提供数据。这应该是可行的:
from collections import defaultdict, OrderedDict
data = defaultdict(list)
for r in ucdp_df.itertuples():
data[r.year].append([r.latitude, r.longitude])
data = OrderedDict(sorted(data.items(), key=lambda t: t[0]))
然后使用数据:
m = folium.Map([35, 41],
tiles='stamentoner',
zoom_start=6)
hm = HeatMapWithTime(data=list(data.values()),
index=list(data.keys()),
radius=10,
auto_play=True,
max_opacity=0.3)
hm.add_to(m)
m
您会得到:
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